# PyPy Configuration[objspace.std.withmultilist]

PyPy Configuration[objspace.std.withmultilist]
general documentation config index command-line overview

# objspace.std.withmultilist

Contents

- Basic Option Information
- Description

back to parent

# Basic Option Information

- name: withmultilist
- description: use lists optimized for flexibility
- command-line: --objspace-std-withmultilist
- command-line for negation: --no-objspace-std-withmultilist
- option type: boolean option
- default: False
- requirements:
  - objspace.std.withrangelist must be set to 'False'
  - objspace.name must be set to 'std'
  - objspace.std.withtproxy must be set to 'False'

# Description

This enables "multilists". They are a different implementation of the Python `list` type, indistinguishable for the normal user (when using multilists, the normal implementation is not used at all).

See the section in Standard Interpreter Optimizations for more details.